Domestic boiler.



J. R. HALDEMAN.

DOMSTIO BOILER. APPLICATION rum) NOV. 22, 1909.

Patented Dec. 6, 1910.

a sums-51mm 1.

. awe Mk1 E25. Tina; RYE/0262776277.

J. R. HALDBMAN.

DOMESTIC BOILER.

APPLICATION 111.31) NOV. 22, 1909 Patented Dec. 6, 1910.

3 SHEETS-SHEET 2.

AL W

J. R. HALDEMAN.

DOMESTIC BOILER.

APPLIOATION FILED NOV. 22 1909.

Patented Dec.6,1910.

3 SHEETS-SHEET 3.

awe Moe (I210. Efi a/cZemazz A rrnn s'rA'rns PATENT orrion.

JOHN RILEY HALDEMAN, OF SPRINGFIELD, MISSOURI.

DOMESTIC BOILER.

To all whom it may concern:

Be it known that I, JOHN R. HALDnuAN, a citizen of the United States,residing at Springfield, in the county of Greene and State of Missouri,have invented certain new and useful Improvements in Domestic Boilers;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements in boilers for canning purposes.

One object of the invention is to provide an improved construction. ofboiler of this character having means whereby the heating of the waterin the boiler is greatly facilitated.

A further object is to provide a boiler for canning purposes soconstructed that two or more of the boilers may be combined and arrangedto increase capacity of the same.

With the foregoing and other objects in view, the invention consists ofcertain .novel features of construction, combination and arrangement ofparts, as will be more fully described and particularly pointed out inthe appended claims.

In the accompanying drawings, Figure 1 is a perspective view of a boilerconstructed in accordance with my invention showing two forms of coversarranged thereon; Fig. 2 is a central vertical longitudinal section ofthe same; Fig. 3 is a horizontal section takenon line 33 of Fig. 2; Fig.4 is a vertical cross section on the line 4l4 of Fig. 2 looking in thedirection of the arrow; Fig. 5 is a detail perspective view of theperforated removable bottom of the boiler; Fig. 6 is a side view of oneform of cover for the boiler compartments; Fig. 7 is a bottom plan viewof the same; Fig. 8 is a perspective view showing two boilers arrangedtogether for use over the furnace; Fig. 9 is a similar view showing thearrangement of three boilers; Fig. 10 is a similar view showing thearrangement of four boilers; Fig. 11 is a plan view of the furnace asarranged for heating three or four boilers; Fig. 12 is a vertical crosssection on the line 12-12 of Fig. 11 showing the construction of thefurnace walls.

My improved boiler comprises a bottom 1 in which adjacent to the edgesand across the same to one side of the center is formed a series ofrivet holes. Riveted to the side Specification of Letters Patent.

Application filed November 22, 1909.

Patented Dec. 6, 1910.

Serial No. 529,381.

edges of the bottom 1 are the side walls 2 of the boiler, said sidewalls having on their lower edges right angularly projecting flanges 3which are provided with rivet holes corresponding with the rivet holesin the edges of the bottom section whereby said sides and bottom may besecurelyriveted together.

Adjacent to the opposite ends of the sides 2 and across the same to oneside of the center are also formed rows of rivet holes, the purpose ofwhich will hereinafter appear. On the upper edges of the side walls 2are formed right angular outwardly projecting flanges 4. Riveted to theends of the bottom and sides of the boiler are end walls 5, said Wallshaving on their side and lower edges right angular outwardly bentflanges 6 provided with rivet holes which correspond with the rivetholes in the edges of the side and bottom walls whereby said ends aresecurely riveted in place.

Arranged through the center of the boiler is a vertical partition wall 7having on its side and lower edges right angular flanges which areriveted or otherwise secured in place.

The compartments formed by the central partition wall 7 are closed bysuitable covers, of which I preferably employ two forms. One form ofcover comprises a pair of doors 8, one of which is hinged along itsouter edge to oneend of the boiler while the other door is hinged on thetop of the boiler immediately over the upper edge of the partition 7.The doors 8 are constructed so that one overlaps the other when inclosed position and the doors are provided on their outer or hingededges with downwardly projecting flanges 9 which closely engage theinner side of one of the end walls and the partition wall of the boiler,thus preventing the escape of steam between the outer edges of the doorsand the walls of the boiler. The under-lapping door is provided on itsinner edge with a downwardly projecting flange 10 whereby said inner endof the door is stiffened and strengthened. The doors 8 are of sufficientlength to engage and overlap the flange 4 on the upper edges of the sidewalls of the boiler. The other form of closure hereinbefore mentionedcomprises a dome shaped cover 11 which is preferably formed from a sheetmetal plate, two sides of which are slitted or notched and the slittedor notched edges are drawn together to overlap and are riveted orotherwise secured. In thus drawing the slitted or notched edges of thematerial together, the plate is folded or creased along its diagonallines to form thecorners 12 of the cover, as clearly shown in thedrawing. After the cover has been thus shaped to form the dome, theouter edge of the material is bent fiat to form a closing flange 13,which when the cover is in place, fits snugly onto the upper edges ofthe boiler. In order to insure a steam tight connection between thecover 11 and the upper edges of the boiler, I preferably secure to thelower side of the cover adjacent to its outer edges downwardly extendingflanges or strips 14:, which when the cover is in place, he adjacent toand are adapted to be forced into close engagement with the inner sidesof the end, side and partition walls of the boiler compartments by thepressure of steam in said compartments, thus providing a steam tightconnection bet-ween the cover and upper edge of the boiler.

In each of the compartments of the boiler, I provide a removable falsebottom 15, said bottom being in the form of a flat plate having itsedges turned down at right angles to form supporting flanges 16 whichrest on the main bottom of the boiler and support the false bottom asuitable distance above the same as shown. In the bottom 15 adjacent tothe edges of the same are formed rows of perforations or apertures 17,the purpose of which will be hereinafter described.

In order to removably secure the false bottom in place, I provideretaining lugs 18, which are preferably in the form of rightangularmetal pieces and are secured in any suitable manner to the inner wallsof the ends of the boiler as shown. I11 addition to the retaining lugs18, I provide a vertically disposed bolt 19, which is loosely mounted insuitable bearing clips 20 secured to the partition 7 and the ends 5 ofthe boiler. The bolt 19 has formed on its lower end a right angularlyprojecting bottom engaging finger 21 which, when the bolt is turned toan operative position, engages the upper side of the false bottom and,together with the lugs 18, securely holds said bottom in position in theboiler. The bolt 19 extends to near the top of the boiler and isprovided on its upper end with an operating handle 22.

By providing the false bottom 15, the stratum of water is confined nextto the bottom or heating surface of the tank, is heated very rapidly,and expands and pushes its way out through the perforations 17 in thefalse bottom and passes up into the main portion of the boiler and isreplaced by other cooler water which in turn is heated and passes out inthe same manner, thus creating a circulation of water through theboiler,

causing the same to heat much more rapidly than in the ordinary form ofboiler.

In practice the boilers may be arranged in single form and placed overany suitable furnace, or they may be arranged in multiple as shown inFigs. 8, 9 and 10 of the drawings, and provided with heating furnacesconstructed to accommodate the same.

When two boilers are arranged together, as shown in Fig. 8, a longstraight furnace 23 is provided, said furnace having a grate at one endand a smoke stack at the other.

nace 2 1 is provided to correspond with the size and shape of the planof the boilers as shown in Fig. 11 of the drawings. In this form offurnace, a grate or fire box 25 is ar-' ranged at the opposite ends ofthe main portion of the furnace while the smoke stack is arranged in thebranch 26 of the furnace.

\Vhen the boilers are arranged as shown in Figs. 9 and 10, all or a partof the same may be used and to this end I provide the main portion ofthe furnace with a centrally disposed damper 27, which is pivotally arranged in said main portionand is adapted to be swung across from oneside to the other of the inner end of the branch of the furnace, thuscutting off one or the other of the grates or fire boxes, thuspermitting one end only of the boilers to be used. When both ends of thefurnace are fired, the damper 27 is moved to a central position be-.tween the inner walls of the branch 26, thus providing a passage fromeach fire box to the stack.

The side walls of the furnace are preferably formed of cement or similarplastic material and are provided with a series of vertically disposedair passages 28 which open at the upper ends of the side walls below theboilers and also open at their lower ends into the ash pit below thegrates of the furnace, said passages thus permitting the heated air topass upwardly from the lower portion of the furnace to the upper portionthereof where it is discharged beneath the bottom of the boilers, thusincreasing the heating capacity of the furnace.

In order to provlde for the circulation of water through all thecompartments of the assembled tanks and to maintain the water 7invention will be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention, as defined in theappended claims.

Having thus described my invention, what I claim is:

1. In a boiler of the class described, a removable bottom comprising aplate having formed therein adjacent to its outer edges a series ofperforations, flanges formed on the edges of said plate to engage themain bottom of the boiler and to support said removable bottom above thesame, retaining lugs secured to the end of the boiler and a fasteningbolt adapted to be turned into engagement with the edge of the'removablebottom opposite to the retaining lugs, whereby said bottom is removablyheld in position in the boiler. I

2. A boiler of the class described adapted &

to be arranged in multiple to increase the capacity thereof, a partitionarranged in the boiler to divide the latter into separate compartments,perforated false bottoms arranged in said compartments, a pipe adaptedto connect the several members and the individual compartments thereintogether whereby the same water level is maintained throughout all ofthe compartments of the boilers, valves arranged in the connectionsbetween said pipe and said boiler compartments, a furnace constructed tocorrespond with the multiple arrangement of said boilers,'and means tocut off part of said furnace whereby the boilers may be run at full orpart of their capacity.

In testimony whereof I have hereunto setmy hand in presence of twosubscribing witnesses.

JOHN RILEY HALDEi IAN.

Witnesses:

MYRTLE Gross WY1\'IER, J. L. HINE.

